Burner



BURNER Filed Nov. 5, 1925 3 Sheets-Sheet 1 Oct. 30,

,793 F. A. NIEBERDING Filed Nov. 5' 5 3 sheet t 5 Jim Patented Oct. 30, 1928,

NITED STATESPATENTTOFFICB FRANK A. NIEBERD N nEcnAsEn Arn or nasr CLEVELAND, OHIO, BY MARG RET nauamnnrne, ADMINISTRATRIX, or nnsr CLEVELAND, onro.

BURNER.

Application filed November This invention relates to an improved burnerfor gas heaters, and the same is especially adaptech and isdesigned primarily,

ants, are supported above the burner open ings'and, whenthe heater is inoperation, become more or less incandescent and give off a brilliant glow.

The burner is fectin and maintaining to the highest degree' the relation of parts which is esponsible for an equal distribution of't'he gasto all radiants, and a proper control of primary and secondaryair', to the end that the great-.

est economy and highest efficiency are obtalned.

In addition'.-to this, a fundamental object of the invention'is to provide a burner of the aforesaid class in which the tubes that deliver gas to the indivi dual radiants are easily and quickly removable for cleaning purposes without disturbing any of the adjustments of the burner parts. The importance and desirability of this feature will be apparent to those acquainted with the fact that in the use ofradiant gas heaters the burner openings have to be cleaned quite frequently if satisfactory results are tovbe obtained because the burner screens,wherewiththe burner openings are equipped to prevent backfiring, soon become clogged withforeign inatter, usually dust that is drawn in through the burner tube with theprimary air.

In the accompanylng drawlngs, wherein similar reference characters are-used to designate corresponding parts throughout the several views, Fig. 1 is a front elevation and Fig. 2 a plan View ofa burner constructed in accordance with the invention; Fig. 3 is a fragmentarysectional front elevation of the burner on a scale considerablyenlarged over that of the preceding views; Fig. 4 is a frage inentary sectional plan, the plane of section .being indicated by the'line 1-4: of Fig. 3;

Figs. 5 and 6 are sectional details on the lines 55 and 66, respectively, of Fig; 1, the

1 same scale prevailing here as'in Figs. '3 and l; and Fig. 7 is a perspective view of one of the burner-tubes. V

The burner is made'up of three m'aior parts, to wit, a manifold, a radiant and burner designed with a view of ef-,

5, 1925. Serial 1No. 6,988,

tube supporting frame, and burner tubes for the respective radiants. The manifoldis designated 1, and it consists of a long hollow body that is s-how-nyas formed, with equally-spaced bosses 2*along itsupper surface, and with an inletextension 3 that, in the present instance, projects forwardly fromthe right hand end of the manifold, as the burner is viewed from thefront.

A gas supply valve 5 is adapted to be connected, by a nipple 6, to the inlet extension 3.

vThe'burner is adapted to, be supportedfroin suitable parts of a heater structure through ears- 7 that project forwardly and rearwardly from the opposite ends of the manifold and, have perforations 8 for the accommodation of stove bolts or other securing means. The above mentioned bosses 2 are bored and tapped for the receptionof nozzles 9. According-to the present method of manufacture, the manifoldl is cast, and core print openings in the end walls of the manifold are closed byiplugs 10; a t

Extending upwardly from the manifold near each end is a riser l2that is enlarged at its middle and bored and tapped for the reception of a screw 13 which serves to secure to the manifold the base 14- of the previously mentioned radiant and burner; tube supporting frame, The base isp ositioned in a forc and-aft direction with respect tothe risers 12 by lugs 15 on the risers,'whereby the con nection between the: base and manifold is thus renderedrigid and secure. Brackets the ones "ofthe risers 12, and resting upon these brackets are others designated18 which depend from ahead 20 that constitutes the other- 'member of said radiant and burner tube supporting frame; The brackets 18 are formed with-depending lugs 21 which are-en'- gaged over the front and rear corners of the: brackets 17 for properly positioning the head 20 in a fore-,and-aftdirection ith-respect to the base 14, and thebrackets- 1-7 at the left hand end of the burner are equippedwith lugs 22 which serve to. relatively position the head and base in a longitudinal "direction; Securing means, "such as stove bolts 23' to which nuts "24 are applied, are engaged through holes in the meeting ends of-the brackets 17 and 18 andbind thehead and base, together. The head 20. is preferably 17 rise from the rear edges ofthe base 14, in

formed of an integral casting and comprises a bottom wall and side walls 26, the latter being surrounded by radiant supporting and positioning lugs 27 on which radiants 28 are adapted to be supported. It will be noted that the upper ends of the lugs 27 arerabbeted to receive the radiants and support them at a given elevation. r

The bottom wall 25 of the head 20 is provided with a series of apertures 30- which are in axial alignment with openings 31 in the base 14 and with the orifices of the nozzles 9. The openings 31 are surrounded by flanges 32 which havediametrically opposed notches 33. Downwardly tapering burner tubes 35 are adapted to be inserted, respectively, through the corresponding ones of the V openings 30 and 31, and adjacent their lower proper position with respect to the nozzles 9;,- 'The tubes 35 are enlarged at their upper ends and terminate in rectangular frameends said tubes have diametrically opposed projections 36 which'are arranged to occupy the notches 33 of the flanges 32 and thus hold the tubes'against angular movement and in like portions 37 withinwhichburner screens 38. are inserted, said screens servlng to pre I vent backfiring 'ofthe gas into the tubes 35.

When the burner is in operation, the gas is I projected .by' the nozzles 9 centrally within the tubes 35, The flow of gas induces an in-. jection of air with the gas into the tubes Where the air and gas arethoroughly mixed before they are emitted through the screen 38 immediately abovewhich the mixture is adapted to burn. The spacing of the tubes from the-nozzles 9 is in a given ratio to the area of the orifices of the nozzles so that a proper proportioning of the gas and air is assured, Secondary air issuppliedto the flames above the burner tubes through the spaces betweenthe lugs 27 and through openings 38 thatare formed along the opposite sides of the head'20 at the angle'between the bottom and sidewalls thereof. Additional secondary air enters through the openings in the radiants 28 to promote perfectcombustion throughoutthe verticalextent of the radiants." p

From the foregolng' description it will be seen that the invention provides a very sub- ,stantial and comparatively simple construetion for gas burners wherein the parts are maintained in correct relative'position to in sure a proper supply of primary'and secondary'air; and by removing one or more of the radiants, any one or more of the tubes 35 may-be lifted from the supporting frame and cleaned, should the screens38 become cloggedv by dust'or other foreign n'ialtter drawn in through the lower end ofthe tube by the'suction created by the flow of'the gas,

' or deposited upon the tops of the screens'3S from above. WVhcn'the tube is dropped back through the openings 30 and31 and the projections 36 are brought into register with the notches 33, a correct relation between the tube and nozzle 9 1s assured, and the replace- 11161113 of the radiant on the lugs 27 insures its proper location with respect to the;upper end'of the burner tube. 1 Having thus describedthe invention, what is claimed is z '1. Agas burner comprising a'radiant and burner tube supporting frame, a manifold situated below the frame and having gas emitting Ol'lfiCQS, and burner'tubes'removthe upper side of the manifold, the 'iramef.

having holes in axial alignment with, said orifices, and burner: tubesfremov'ably supr ported within said holes, the frame 1ncorporating means for supporting radiantsjabovev and in operative relation to the burner tubes.

3.'In a gas burner, the combination'lof a frame comprised of ahead and a base connected together in vertically spaced relation, a manifold secured to and spaced below the the upper ends of base, said manifold having a series-of longi-.

' ablysustained by the frame free from.thej"' manifold so that the tubesmay be .readily lllll tudinally spaced apart gas emitting orifices,

and the head and base having holesthat-are substantially in axial alignment with said gas emitting orifices, burner tubes removably supported withinsaid holesin operative 'rela-' tion to-the gas emittingorifices, the frame incorporating parts for supportingand p0-- radiants. in. operative relation ,to-

5 110. 4. In a gas burner, the combination of a sitioning the upper ends of't hetubes.

frame comprised of a headuand a base conneeted together in-vartica' ly spaced relation, a manifold secured to and spaced below thebase, said manifold having aseries' of longi tudinally spaced apart gas emitting orifices,

andthe head and base having holes that are substantially in axial. alignment with said gas emitting orifices, bur'ner tubes'removably .supportedwithin said holes 'in' operative relation tothe gas. emitting orifices, the tubes and frame having partsWhich coact tomaintain the tubes in a given angular relation to the frame, the frame incorporating parts for supporting and positioningradiantsin operative relation to the upper ends of thetubes; 5. In a gas burner, the combination of a frame comprised ofa head andbase that are connected together inverticaily spaced rela t1on, a manifold spaced below and connected" to the frame and having a series of longitudinally spaced apart gasemitting orifices,

within the holes of the head and base, said tubes and the frame having cooperating positioning parts whereby the tubes are held agamst turning with respect to the frame,

the head incorporatingmeans for supporting and positioning radiants in operative relation to the upperends of the tubes. 6. In a gas burner, the combination of frame comprised of a head and base'that are connected together in vertically spaced relation, a manifold spaced below and connected to the frame and having a series of longitudinally spaced apart gas emitting orifices, the head and base of said frame having axially aligned openings that are substantially in axial alignment with the orifices, burner tubes having rectangular upper ends equipped with screens, said tubes being removably supported within the holes of the head and base, saidtubes having projections and the base having notches for the reception of said projections whereby the tubes are held against turning with respect to the frame, the head incorporating means for supporting and positioning radiants in operative relation to the upper ends of the tubes.

7. In a. gas burner, the'combination of a frame comprised of a head and a base connected together in vertically spaced relation, a manifold secured to and spaced below the base and having a series of gas emitting orifices that are spaced apart longitudinally of the manifold, the head and base having axially aligned openings that are substantially in axial alignment with said orifices, burner tubes removably supported within the openings of the head and base, the-head having side walls and radiant supporting and positioning parts rising from said walls, I

8. In a gas burner, the combination'of a frame comprised of a head and a base con- .nected together in vertically'spaced relation,

a manifold secured to and spaced below the base and having a series of gasemitt-ing orifices that are spaced apart longitudinally of the manifold, the head and base having axially aligned openings thatare substantially in axial alignment with said orifices, burner tubes removably supported within the;openings of the head and base, the head having side walls and radiant supporting and positioning parts rising from said walls, the head being provided with secondaryair openings.

9. In a gas burner, the combination of a frame comprised of a headand a base, the

head consisting of a bottom wall and side I walls and having adjacent its ends depending brackets, brackets r sing from the base and mating with those of the head, means secur 7 ing the head and base together, the head and base having axially aligned openings, burner tubes removably supported individually within the corresponding holes of the head upper ends of the burner tubes, and a manifold supported below the base and having gas emitting, apertures in the burner tubes. I 10. In a gas burner, the combination of a frame comprised of a head and a base, the

head consisting. of a bottom wall and side "walls and having adjacent its ends depending brackets, brackets rising from thebaseand mating with those of the head, means securing the brackets of the head and base together, the head and base having axially aligned open ings, burner tubes removably supported indioperati've relation to i and base, the head incorporating lugs whichrise from the side walls and are arranged to: support radiants in operative relation to the vidually within the corresponding holes of v the head and. base, the head having a series of secondary air openings and incorporating lugs which rise from the side walls and are arranged to support radiants in operative relation to the upper ends of the burner tubes, and a manifold supported below the base and having gas emitting apertures in operative relation to the burner tubes.

11. In a gas burner, the combination of a frame comprised of a head and a base that are connected together in vertically spaced relation, the head and base havingaxially aligned openings, burner tubes removably and individually supported in the corresponding openings of the head and base, the openings of the base being surrounded by flanges, the burner tubes having projections and said flanges havmg notches for the reception of said pro ections, and a manifold supported below the base and having gas emitting orifices in operative relation to the burner tubes.

' 12. In a gas burner, the combination of a manifold having a seriesof gas emitting openings along its upper side that are spaced apart longitudinally of the manifold, the manifold being formed with risers adjacent its ends, a frame comprised of a head and a base that are connected together in vertically spaced relation, the base resting upon the risers of the manifold, means connecting the base to said ri-sers, the head and base having vertically aligned openings that are substantially in axial alignmentwith the gas emitting orifices of the manifold, and burner tubes removably and individually supported within the corresponding openings of the head and base.

, 13.: In a gas burner, the combination of a manifold having a series of gas emitting openings along its upper side that are spaced apart longitudinally of the manifold, the manifold being formed with risers adjacent itsends, a

,frame'comprised of'a head and a base that are connected together in vertically spaced relation, the base resting upon the risers of the and individually supported within the corremanifold, the base and risers interengaging sponding openings of the head andbase, 10

to position the frame in a given relation to the In testimony whereof, I hereunto. afiix my manifold, means connecting the base to said signature.v i

- risers, the head and base having vertically I aligned openings that are substantially in ,MARGARET HPNIEBERDINGQ axial alignment with the gas emitting orifices Administratrim of the E state of Frank A. of the manifold, and burner tubes removably N z'eberdz'ng. V a 

